Art Howe

Catcher Carson Blair needs surgery on his left medial menisicus and his season is over.

Maybe there is something in the local water that negatively impacts Oakland catchers.

The A’s lost rookie catcher Carson Blair for the season Saturday, the club announcing that Blair needs season-ending surgery for a medial meniscus tear. Manager Bob Melvin said Blair felt some discomfort in his left knee in a start Thursday, played through it only to have an MRI Friday reveal the problem.

The A’s have already lost catcher Josh Phegley for a year to a concussion and Stephen Vogt is just back and healthy after missing the better part of three weeks after taking a vicious foul tip off his groin.